#VU44245 Buffer overflow in Advantech WebAccess - CVE-2011-4526

Vulnerability identifier: #VU44245

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2011-4526

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Advantech WebAccess
Server applications / SCADA systems

Vendor: Advantech Co., Ltd

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

Buffer overflow in an ActiveX control in Advantech/BroadWin WebAccess before 7.0 might allow remote attackers to execute arbitrary code via a long string value in unspecified parameters.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Advantech WebAccess: 5.0

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External links
https://www.securityfocus.com/bid/52051
https://www.us-cert.gov/control_systems/pdf/ICSA-12-047-01.pdf

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.